Remove the word middleware (#1067)

* Rename middleware to plugin

first pass; mostly used 'sed', few spots where I manually changed
text.

This still builds a coredns binary.

* fmt error

* Rename AddMiddleware to AddPlugin

* Readd AddMiddleware to remain backwards compat

1 files changed, 0 insertions, 30 deletions

diff --git a/middleware/file/zone_test.go b/middleware/file/zone_test.go
deleted file mode 100644
index c9ff174db..000000000
--- a/middleware/file/zone_test.go
+++ /dev/null
@@ -1,30 +0,0 @@
-package file
-
-import "testing"
-
-func TestNameFromRight(t *testing.T) {
-	z := NewZone("example.org.", "stdin")
-
-	tests := []struct {
-		in       string
-		labels   int
-		shot     bool
-		expected string
-	}{
-		{"example.org.", 0, false, "example.org."},
-		{"a.example.org.", 0, false, "example.org."},
-		{"a.example.org.", 1, false, "a.example.org."},
-		{"a.example.org.", 2, true, "a.example.org."},
-		{"a.b.example.org.", 2, false, "a.b.example.org."},
-	}
-
-	for i, tc := range tests {
-		got, shot := z.nameFromRight(tc.in, tc.labels)
-		if got != tc.expected {
-			t.Errorf("Test %d: expected %s, got %s\n", i, tc.expected, got)
-		}
-		if shot != tc.shot {
-			t.Errorf("Test %d: expected shot to be %t, got %t\n", i, tc.shot, shot)
-		}
-	}
-}